Olympic champion Bolt and his girlfriend attend a ceremony for the unveiling of Bolt's statue at the Statue Park at the National Stadium, in Kingston

Olympic champion Usain Bolt (C) and his girlfriend Kasi Bennett (2nd R) attend a ceremony for the unveiling of Bolt's statue at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Olympic champion Bolt and his girlfriend attend a ceremony for the unveiling of Bolt's statue at the Statue Park at the National Stadium, in Kingston

Olympic champion Usain Bolt (C) and his girlfriend Kasi Bennett (2nd R) attend a ceremony for the unveiling of Bolt's statue at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Jamaica's Prime Minister Holness, his wife, Olympic Champion Bolt and his girlfriend attend a ceremony for the unveiling of Bolt's statue, at the Statue Park at the National Stadium, in Kingston

Jamaica's Prime Minister Andrew Holness (2nd L), his wife and Member of Parliament Juliet Holness (L), Olympic Champion Usain Bolt (2nd R) and his girlfriend Kasi Bennett attend a ceremony for the unveiling of Bolt's statue, at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Olympic champion Usain Bolt addresses the audience after the unveiling of his statue at the Statue Park at the National Stadium, in Kingston

Olympic champion Usain Bolt addresses the audience after the unveiling of his statue at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Olympic champion Bolt poses after the unveiling of his statue at the Statue Park at the National Stadium, in Kingston

Olympic champion Usain Bolt (C) poses after the unveiling of his statue at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Olympic champion Bolt arrives with his girlfriend for the unveiling of his statue, in Kingston

Olympic champion Usain Bolt (L) arrives with his girlfriend Kasi Bennett for the unveiling of his statue at the Statue Park at the National Stadium, in Kingston, Jamaica December 3, 2017. REUTERS/Gilbert Bellamy

Sebastian Coe, IAAF's President and Rune Andersen, head of the IAAF taskforce on Russia, attend a press conference as part of the International Association of Athletics Federations (IAAF) council meeting in Monaco

Sebastian Coe (L), IAAF's President and Rune Andersen, head of the IAAF taskforce on Russia, attend a press conference as part of the International Association of Athletics Federations (IAAF) council meeting in Monaco, February 6, 2017. REUTERS/Eric Gaillard

Sebastian Coe, IAAF's President and Rune Andersen, head of the IAAF taskforce on Russia, attend a press conference as part of the International Association of Athletics Federations (IAAF) council meeting in Monaco

Sebastian Coe (L), IAAF's President and Rune Andersen, head of the IAAF taskforce on Russia, attend a press conference as part of the International Association of Athletics Federations (IAAF) council meeting in Monaco, February 6, 2017. REUTERS/Eric Gaillard

A woman walks out of a building, which houses a laboratory accredited by WADA, in Moscow

A woman walks out of a building of the federal state budgetary institution "Federal scientific centre of physical culture and sports", which houses a laboratory led by Grigory Rodchenkov and accredited by the World Anti-Doping Agency (WADA), in Moscow, Russia, November 10, 2015. REUTERS/Sergei Karpukhin

Nov 5, 2017; New York, NY, USA; (From left to right) John Charles Smith and Marcel Hug and Sho Watanabe pose for a photo following the Men's Push Rim Wheelchair Race during the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

Running: New York City Marathon

Nov 5, 2017; New York, NY, USA; (From left to right) Tatyana McFadden and Manuela Schar and Amanda McGrory pose for a photo following the Women's Push Rim Wheelchair Race at the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

"Meb" Keflezighi of U.S. is tended to after collapsing at the finish line of his final New York City Marathon in Central Park in New York

"Meb" Keflezighi of U.S. is tended to after collapsing at the finish line of his final New York City Marathon in Central Park in New York, U.S., November 5, 2017. REUTERS/Brendan McDermid

"Meb" Keflezighi of U.S. collapses on the finish line as he completes his final New York City Marathon in Central Park in New York

"Meb" Keflezighi of U.S. collapses on the finish line as he completes his final New York City Marathon in Central Park in New York, U.S., November 5, 2017. REUTERS/Brendan McDermid

Manuela Schar of Switzerland celebrates after crossing the finish line of the New York City Marathon, winning the women's wheelchair race in New York

Athletics - New York City Marathon - New York, U.S. - November 5, 2017 - Onlookers cheer and support runners during the New York City Marathon. REUTERS/Amr Alfiky

"Meb" Keflezighi of U.S. acknowledges the crowd after finishing his final New York City Marathon in Central Park in New York

"Meb" Keflezighi of U.S. acknowledges the crowd after finishing his final New York City Marathon in Central Park in New York, U.S., November 5, 2017. REUTERS/Brendan McDermid

Running: New York City Marathon

Nov 5, 2017; New York, NY, USA; Shalane Flanagan celebrates as she crosses the finish line to win the professional women's division at the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

Running: New York City Marathon

Nov 5, 2017; New York, NY, USA; Shalane Flanagan celebrates after winning the professional women's division at the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

Runners cross the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York

Runners cross the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

Running: New York City Marathon

Nov 5, 2017; New York, NY, USA; Shalane Flanagan celebrates after winning the professional women's division at the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

A runner carries a tray shortly after the start of the New York City Marathon in New York

A runner carries a tray shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

Runners exit from the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York

Runners exit from the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

A runner pauses on the median while crossing the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York

A runner pauses on the median while crossing the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

Running: New York City Marathon

Nov 5, 2017; New York, NY, USA; Shalane Flanagan reacts after winning the professional women's division at the 2017 TCS New York City Marathon. Mandatory Credit: Derik Hamilton-USA TODAY Sports

Residents of Brooklyn greet runners shortly after the start of the New York City Marathon in New York

Residents of Brooklyn greet runners shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

New York Police Department officers greet runners shortly after the start of the New York City Marathon in New York

New York Police Department officers greet runners shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

Residents of Brooklyn greet runners shortly after the start of the New York City Marathon in New York

Residents of Brooklyn greet runners shortly after the start of the New York City Marathon in New York, U.S., November 5, 2017. REUTERS/Lucas Jackson

Geoffrey Kamworor of Kenya crosses the finish line to win the New York City Marathon in Central Park in New York

Geoffrey Kamworor of Kenya crosses the finish line to win. REUTERS/Brendan McDermid